Boring and stuffing machine for broom and brush heads



G. HENNING. 50mm: AND STUFFILLG MRcHmE FOR BROOM AND BRUSH HEADS.

APPLICATION FIL ED SEPT. 28, 1920 Patented Aug. 22, 1922 2 SHEETS-SHEET I.

G. HENNING.

BORING AND STUFFING MACH|NE FOR BROOM AND BRUSH HEADS. I

APPLICATION FILED SEPTi'28l 1920.

1,426,382, Patented Aug. 22, 1922'.

2 SHEETS-SHEET 2.

V 1%, ken/ on enone rrnnlvnve, or Banennonr, NEAR HAMBURG, GERMANY.

'Bonme- AND smorrme MACHINE non BROOM AND BRUSH. HEADS.

Application filed. September 28, 1929. Scrial No. 413,380.

1 '0 all whom it may concern Be it known that l, Gnono HENNING, a citizen of the German Republic, residing at Bergedorf, near Hamburg, Germany,'have invented certain new and useful Improvements in Boring and Stuffing Machines for Broom and Brush Heads, of which the fol lowing is a specification.

This invention relates to boringand stuffing-machines for broomand brush-heads of that type in which the boring device and the stuifing device work together with one and the same workpiece support. With machines of this type 'th'eboring device is arranged so that it can be oscillated to adjust the drill'in the axial working'direction of the stufling tool, the drill moving parallel to this working direction. With such an arrangement of the boring device the stuiling tool can advance only when the boring device, which oscillates transversely with regard to the axis of the stuffing tool, has moved farenough away from the path of the stufiing tool, from which there results at each boringand striding-operation a loss of time which repeats itself continuously [and which causes a considerable decrease of efficiency of the machine. Owing to the parallel movement of the drill the back play, which is unavoidable with the movement of the oscillating arm which carries the. drill, is transferred in being increased to the adjustment of the drill so'that the said drill is adjusted outside the working direction-of the stufiing tool.

The machine constructed according to this invention is free from both thesedefects so that the stuiiing tool can advance simultaneously with the oscillation of the drill out" of its working position and that the back play in the boring device makes itself felt only in the working direction of the drill in a harmless manner. The efficiency of the machine is thus increased and a correct cooperation of the drill and the stuffing tool is ensured. This object is attained, accord ing to the invention, through arranging the boring device so that it can oscillate in a plane which is situated parallel to the working direction of the stuffing tool, this working direction being situated 1n the said plane. At a ClStGIDllHQClPOSllLlOIl of the axis of rotation of the boring device the part of the said device which carries the drill moves out of the path of the stufling tool with such speed that the stuffing tool can advance at the same time." The back play produced during the movement of the boring device can produce a displacement of the drlll only m the direction of the axis of the drill but not perpendicular to this direction so that the'drill bores at exactly the same point'of thebrush head at which the stuilinjg tool will work afterwards. I i It is evident that the boring device can be fixed and the'stufling device can oscillate The invention is diagrammatically. shown inthe accompanying drawing, by ay. of example, in ms application totwo different borlngand stufling-machines. The draw- Specification of LettersPatent. Patented Aug'g'22, 1922.

ing shows only those parts of the machine I which are absolutely necessary to make the invention understood.

Figs. 1 and 2 show the improvements in connection with a machine with a horizontalworkpiece.

Figs. 3 and 4 showlthe improvements in connection"with" a machine with upright workpiece moved towards the fixed stuffing A device." I In all figures a is the boring tool and *b is the stuffing tool. In the machine illustrated by Figs. 1 and 2 the support, which carries I the" horizontal 'workpiece w, 1 consists of a holder d pivotally mountedupon pine and ofatable f adapted to oscillate around two lateralstuds e and provided with a clamping device for the workpiece m. The holder d and the table foscillate in planes which intersect one anotherat right'angles. The workpiece isdisplaced continuously in the direction of its longitudinal axis through 1:

the oscillations of the holder (1 and in trans verse direction through the oscillation of the table f (which takes place inthe plane of the drawing) and by means of mechanisms which are not shown in thedrawing.

The stuffing tool 17) executes above] the work piece as a reciprocating movement in vertical direction, the line of movement standing perpendicular to the axis ofthe studs 6 and the axis of the pin 0. The boring tool a can be adjusted so that it is situated in this line of movement of the stuffing tool I) and consequently comes in contact with the work piece :0 at exactly the same point as the stufiing tool 6. WVith this obj ectin View the boring device consists of an oscillating arm 9 adapted to turn around a shaft h mounted in the machine, said arm carrying the drill'a in an extension of its free end whichis bent downwards at an acute angle. a The drill a is revolved from the shaft 7' located in the oscillating arm 9 with the aid of the bevel wheels 2', the shaft j being operated from the shaft it by means of the bevel wheels is mounted upon said shafts j and h and meshing the one with the other. A lever Z rigidly connected with the oscillating arm 9 is operated by means of a connecting rod m driven from the machine. 7

The shaft h is mounted in such a manner, that the oscillating arm 9 can be swung upwards from the position shown in Fig. 1, in which the drill 0 stands in line with that pointof the workpiece x at which the stuffing tool 6 will work afterwards, so that the path to the workpiece is made free for the stufiing tool (F 2').

The oscillating arm 9 is moved fromthe machine through the intermediary of the connecting rod on in such a manner that,

after the workpiece x has been adjusted through the feed motion of the workpiece support J, f, the stuffing tool being in the upper position, the drill a is lowered upon the workpiece to be raised again aftervthe hole has been bored. The stuliing tool?) is now operated to insert the bristles into the hole which has just been bored, to be raised again, whereupon the workpiece can be moved to the next following position. The movement of the stuiiing tool takes place in a line which is tangential to the are described bythe cutting end of the drill at the precise point where the latter engages the surface of the brush back.

In the boring and stufling machine shown in Figs. 3 and 4- the support a of the workpiece is moved in a horizontal direction towards the fixed stufling tool 5. The boring device is arranged in such a manner that the oscillating arm 9 is raised when the drill a moves clear of the space for the stuffing tool 5 or when the workpiece has to be advanced towards the stufling tool.

In machines for boring and stufing broomheads the boring device can be made so that it moves in a lateral direction instead of oscillat-ing in an upward direction as described.

1. In a brush boring and bristle setting machine, the combination with a machine frame of a support for the brush back; a boring tool and a stufiing tool; a swinging carrier arm for one of the tools pivoted to the machine frame in the plane of the brush back, said tool adapted to engage the brush back at right angles to its surface when in working position; and said second tool adapted to reciprocate relatively to the brush back support in a line tangential tothe are described by the first-na1ned tool at the point where said first-named tool is adapted to engage the brush back.

In a brush boring and bristle setting machine, the combination with a machine frame of a support for the brush back; a boring tool and a stuliing tool; a swinging carr1er arm for the boring tool pivoted to the machine frame in the plane of the brush back, said. boring tool being adapted to engage the brush back at right angles to its surface; and the second tool adapted to reciprocate relatively to the brush back support in a line tangential to the are described by the cut ting end of the boring tool at the point where the latteris adapted to engage the brush back. y

In testimony whereof I afliX my signature in presence of two witnesses.

GEORG HENNING.

Witnesses EMIL Haonn, PETER LAUER. 

